11021-U
Graphsphere™ Carbon Adsorbent
matrix Graphsphere™ 2016, 60-80 mesh, bottle of 10 g
别名:
polymeric adsorbent, FormerlyCarboxen® 1016, 60-80 mesh
产品名称
Graphsphere™ Adsorbent, matrix Graphsphere™ 2016, 60-80 mesh, bottle of 10 g
description
Formally Carboxen® 1016
product line
Carboxen®
Graphsphere™
form
powder
packaging
bottle of 10 g
technique(s)
LPLC: suitable
surface area
~75 m2/g
matrix
Formally Carboxen® 1016
Graphsphere™ 2016
matrix active group
carbon
particle size
60-80 mesh
pore size
~0.34 cm3/g mesoporosity
~0 cm3/g macroporosity
~0 cm3/g microporosity
~0 Å pore diameter
density
~0.41 g/mL (free fall density)
application(s)
sample preparation
separation technique
reversed phase
Quality Level
General description
A spherical graphitized polymer carbon (SGPC) has an innovative structure; a porous or non-porous core (the carbon framework that remains after pyrolysis of polymeric precursor), and a graphitized shell of a controlled thickness. The graphitization process results in a highly pure surface with great adsorption and desorption (if required) properties. Surface interactions depend solely on dispersion (London) forces. These amorphous/graphitic adsorbents are:
Generally, SGPC adsorbents offer weaker relative adsorptive strength compared to carbon molecular sieve (CMS) adsorbents, and similar relative adsorptive strength compared to graphitized carbon black (GCB) adsorbents. Our Graphsphere™ products are a type of SGPC adsorbent. They are great alternatives to GCB adsorbents (which are granular and friable).
For more information about any of our specialty carbon adsorbents, please visit sigma-aldrich.com/carbon
- Spherical (better packed bed performance than granular particles)
- Hard and non-friable (pack well, will not break)
- Used for molecules with an analyte size relative to C5-C12 n-alkanes
- Hydrophobic (can be used in high humidity environments)
Generally, SGPC adsorbents offer weaker relative adsorptive strength compared to carbon molecular sieve (CMS) adsorbents, and similar relative adsorptive strength compared to graphitized carbon black (GCB) adsorbents. Our Graphsphere™ products are a type of SGPC adsorbent. They are great alternatives to GCB adsorbents (which are granular and friable).
For more information about any of our specialty carbon adsorbents, please visit sigma-aldrich.com/carbon
Legal Information
Carboxen is a registered trademark of Merck KGaA, Darmstadt, Germany
Graphsphere is a trademark of Sigma-Aldrich Co. LLC
存储类别
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
Applications of Solid Phase Microextraction.
Pawliszyn J.
Science, 64-65 (1999)
B D Page et al.
Journal of chromatography. A, 873(1), 79-94 (2000-04-11)
The headspace solid-phase microextraction (HS-SPME) efficiencies from vegetable oil of the recently available Carboxen-poly(dimethylsiloxane) (PDMS) and divinylbenzene-Carboxen-PDMS fibres were found to be much greater than those of the PDMS fibre for a number of volatile contaminants. Using these Carboxen-based fibres
Jan Pollmann et al.
Journal of chromatography. A, 1134(1-2), 1-15 (2006-10-03)
Nine commercial solid adsorbent materials (in order of decreasing surface area: Carboxen 1000, Carbosieve S III, molecular sieve 5A, molecular sieve 4A, silica gel, Carboxen 563, activated alumina, Carbotrap and Carboxen 1016) were investigated for their ability to trap and
商品
Synthetic CMS carbons offer tailored adsorbents for specific applications.
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